Lincomycin Impurity 21 CAS CATO-C4X-134221
| CAS No. | CATO-C4X-134221 |
| Molecular Formula | C18H34N2O6S |
| Molecular Weight | 406.54 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Lincomycin Impurity 21 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
As a process- or degradation-related impurity, Lincomycin Impurity 21 (CAS CATO-C4X-134221, C18H34N2O6S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Lincomycin Impurity 21 (C18H34N2O6S) is characterized by an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
Physical & Chemical Properties
| Molecular Formula | C18H34N2O6S |
| Molecular Weight | 406.54 g/mol |
| Purity | >90% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Lincomycin Standards
- Lincomycin EP Impurity D(Clindamycin EP Impurity D) (CAS 17017-22-0)
- Lincomycin Impurity 19 (CAS CATO-C4X-134219)
- Lincomycin Impurity 20 (CAS CATO-C4X-134220)
- Lincomycin Impurity 23 (CAS CATO-C4X-134223)
- Lincomycin Impurity 24 (CAS CATO-C4X-134224)
- Lincomycin EP Impurity A (CAS CATO-C4X-13423)
- Lincomycin Hydrochloride Impurity B (Mixture of Diastereomers) (CAS CATO-C4X-13424)
- Lincomycin-d3 (CAS CATO-C4X-134215)
Recommended Standards
- Clindamycin Impurity 96 (CAS CATO-C4X-134196)
- N-[5-[2-[[2-(5-Amino-1,3,4-thiadiazol-2-yl)ethyl]thio]ethyl]-1,3,4-thiadiazol-2-yl]-benzeneacetamide (CAS 1415397-13-5)
- Clindamycin Impurity 95 (CAS CATO-C4X-134195)
- 3-(Hexylthio)-4-methyl-5-(1-phenyl-5-(1H-pyrrol-1-yl)-1H-pyrazol-4-yl)-4H-1,2,4-triazole (CAS 956741-83-6)
- Ibrutinib Impurity 169 (CAS CATO-C4X-1064169)
- Flurbiprofen Impurity 17 (Mixture of Diastereomers) (CAS CATO-C4X-144477)
- Anamorelin Impurity 15 (CAS CATO-C4X-286915)
- (2E)-3-(2H-1,3-Benzodioxol-5-yl)-N-benzylprop-2-enamide (CAS 1160168-43-3)
- 3-(Heptan-4-ylamino)tetrahydrothiophene 1,1-dioxide (CAS 1019610-36-6)
- (S)-2-Chloro-1-(3-((cyclopropylmethyl)amino)pyrrolidin-1-yl)ethanone (CAS 1354010-73-3)
- 5-Bromo-1-fluoronaphthalen-2-ol (CAS 2760417-61-4)
- 3-Hydroxy-2,3-dimethylbutan-2-yl hydrogen (4-(pyridin-4-yl)thiazol-5-yl)boronate (CAS 2223054-18-8)
- {[(4aR,6R,7R,7aR)-6-{6-Amino-8-[(4-chlorophenyl)sulfanyl]-9H-purin-9-yl}-7-methoxy-2-oxo-hexahydro-2λ-furo[3,2-d][1,3,2]dioxaphosphinin-2-yl]oxy}methyl acetate (CAS 1152197-23-3)
- Semaglutide impurity 29 (CAS CATO-C4X-222629)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com